Senhua Ke
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Senhua Ke has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Jianqing Zhou
Hubei Key Laboratory of Photoelectric Materials and Devices, School of Materials Science and Engineering, Hubei Normal University, Huangshi 435002, China
1 shared publication - Jie Zhang
Hubei Key Laboratory of Photoelectric Materials and Devices, School of Materials Science and Engineering, Hubei Normal University, Huangshi 435002, China
1 shared publication - Linfeng Fei
Nanchang University
1 shared publication - Lun Yang
Hubei Key Laboratory of Photoelectric Materials and Devices, School of Materials Science and Engineering, Hubei Normal University, Huangshi 435002, China
1 shared publication - Wanping Chen
School of Physics and Technology, Wuhan University, Wuhan 430072, China
1 shared publication - Xiaodong Cui
School of Physics and Technology, Wuhan University, Wuhan 430072, China
1 shared publication
Latest Publications
- Open Access
Surprising Tribocatalytic Production of H2 from H2O by Silicon Single Crystals via Low-Speed Magnetic Stirring
A surprising tribocatalytic capability has been discovered for Si single crystals to convert mechanical energy into chemical energy for organic dye degradation recently. In this study, their tribocatalytic capability has been explored for converting mechanical energy into chemical energy of water splitting. In glass reactors with Si single crystals coated on the bottoms and with H2O and N2 enclosed, Al2O3 nanoparticles, TiO2 nanoparticles, and NiO particles were stimulated through magnetic stirring using home-made PTFE magnetic rotary disks separately. For Al2O3 nanoparticles, as much as 14,330 and 41,964 ppm H2 were produced after 1 and 3 h of 400 rpm magnetic stirring, respectively, much higher than those obtained for TiO2 and NiO, and for Al2O3 nanoparticles in glass-bottomed reactors as well. The tribocatalytic production of H2 was further explored with respect to NaCl addition to H2O and p/n doping in Si, with negative effects observed for them all. Photoluminescence spectroscopy revealed continuous generation of hydroxyl radicals in the course of magnetic stirring, which supports a tribocatalytic mechanism based on the excitation of electron–hole pairs in Si single crystals through mechanical energy absorbed through friction. These findings suggest a great potential for narrow-band semiconductors to utilize mechanical energy through friction to carry out important chemical reactions.
Open AccessSurprising Tribocatalytic Production of H2 from H2O by Silicon Single Crystals via Low-Speed Magnetic Stirring
A surprising tribocatalytic capability has been discovered for Si single crystals to convert mechanical energy into chemical energy for organic dye degradation recently. In this study, their tribocatalytic capability has been explored for converting mechanical energy into chemical energy of water splitting. In glass reactors with Si single crystals coated on the bottoms and with H2O and N2 enclosed, Al2O3 nanoparticles, TiO2 nanoparticles, and NiO particles were stimulated through magnetic stirring using home-made PTFE magnetic rotary disks separately. For Al2O3 nanoparticles, as much as 14,330 and 41,964 ppm H2 were produced after 1 and 3 h of 400 rpm magnetic stirring, respectively, much higher than those obtained for TiO2 and NiO, and for Al2O3 nanoparticles in glass-bottomed reactors as well. The tribocatalytic production of H2 was further explored with respect to NaCl addition to H2O and p/n doping in Si, with negative effects observed for them all. Photoluminescence spectroscopy revealed continuous generation of hydroxyl radicals in the course of magnetic stirring, which supports a tribocatalytic mechanism based on the excitation of electron–hole pairs in Si single crystals through mechanical energy absorbed through friction. These findings suggest a great potential for narrow-band semiconductors to utilize mechanical energy through friction to carry out important chemical reactions.